debian/rrdcached.init.d

   1 #! /bin/bash
   2 #
   3 # rrdcached - start and stop the RRDtool data caching daemon
   4 # http://oss.oetiker.ch/rrdtool/
   5 #
   6 # Based on the collectd init script.
   7 #
   8 # Copyright (C) 2005-2006 Florian Forster <octo@verplant.org>
   9 # Copyright (C) 2006-2009 Sebastian Harl <tokkee@debian.org>
  10 #
  11
  12 ### BEGIN INIT INFO
  13 # Provides:          rrdcached
  14 # Required-Start:    $local_fs $remote_fs
  15 # Required-Stop:     $local_fs $remote_fs
  16 # Should-Start:      $network
  17 # Should-Stop:       $network
  18 # Default-Start:     2 3 4 5
  19 # Default-Stop:      0 1 6
  20 # Short-Description: start the RRDtool data caching daemon
  21 ### END INIT INFO
  22
  23 set -e
  24
  25 PATH=/sbin:/bin:/usr/sbin:/usr/bin
  26
  27 DISABLE=0
  28
  29 DESC="RRDtool data caching daemon"
  30 NAME=rrdcached
  31 DAEMON=/usr/bin/rrdcached
  32
  33 PIDFILE=/var/run/rrdcached.pid
  34
  35 MAXWAIT=30
  36
  37 # Gracefully exit if the package has been removed.
  38 test -x $DAEMON || exit 0
  39
  40 if [ -r /etc/default/$NAME ]; then
  41         . /etc/default/$NAME
  42 fi
  43
  44 if test "$DISABLE" != 0 -a "$1" == "start"; then
  45         echo "$NAME has been disabled - see /etc/default/$NAME."
  46         exit 0
  47 fi
  48
  49 if test "$ENABLE_COREFILES" == 1; then
  50         ulimit -c unlimited
  51 fi
  52
  53 d_start() {
  54         if test "$DISABLE" != 0; then
  55                 # we get here during restart
  56                 echo -n " - disabled by /etc/default/$NAME"
  57                 return 0
  58         fi
  59
  60         start-stop-daemon --start --quiet --oknodo --pidfile "$PIDFILE" \
  61                 --exec $DAEMON -- $OPTS -p "$PIDFILE"
  62 }
  63
  64 still_running_warning="
  65 WARNING: $NAME might still be running.
  66 In large setups it might take some time to write all pending data to
  67 the disk. You can adjust the waiting time in /etc/default/$NAME."
  68
  69 d_stop() {
  70         PID=$( cat "$PIDFILE" 2> /dev/null ) || true
  71
  72         start-stop-daemon --stop --quiet --oknodo --pidfile "$PIDFILE"
  73
  74         sleep 1
  75         if test -n "$PID" && kill -0 $PID 2> /dev/null; then
  76                 i=0
  77                 while kill -0 $PID 2> /dev/null; do
  78                         i=$(( $i + 2 ))
  79                         echo -n " ."
  80
  81                         if test $i -gt $MAXWAIT; then
  82                                 echo "$still_running_warning" >&2
  83                                 return 1
  84                         fi
  85
  86                         sleep 2
  87                 done
  88                 return 0
  89         fi
  90 }
  91
  92 d_status() {
  93         PID=$( cat "$PIDFILE" 2> /dev/null ) || true
  94
  95         if test -n "$PID" && kill -0 $PID 2> /dev/null; then
  96                 echo "$NAME ($PID) is running."
  97                 exit 0
  98         else
  99                 PID=$( pidof $NAME ) || true
 100
 101                 if test -n "$PID"; then
 102                         echo "$NAME ($PID) is running."
 103                         exit 0
 104                 else
 105                         echo "$NAME is stopped."
 106                 fi
 107         fi
 108         exit 1
 109 }
 110
 111 case "$1" in
 112         start)
 113                 echo -n "Starting $DESC: $NAME"
 114                 d_start
 115                 echo "."
 116                 ;;
 117         stop)
 118                 echo -n "Stopping $DESC: $NAME"
 119                 d_stop
 120                 echo "."
 121                 ;;
 122         status)
 123                 d_status
 124                 ;;
 125         restart|force-reload)
 126                 echo -n "Restarting $DESC: $NAME"
 127                 d_stop
 128                 sleep 1
 129                 d_start
 130                 echo "."
 131                 ;;
 132         *)
 133                 echo "Usage: $0 {start|stop|restart|force-reload|status}" >&2
 134                 exit 1
 135                 ;;
 136 esac
 137
 138 exit 0
 139
 140 # vim: syntax=sh noexpandtab sw=4 ts=4 :
 141